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				<h2>基能源与环境材料团队</h2>
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						Most industrial processes are difficult to obtain pure products directly, and further purification and purification of the products is required. Separation and purification (refining, etc.) in the industry consumes a large amount of energy (in the United States, the energy consumption of the separation process accounts for <span>50%</span> of total industrial energy consumption), resulting in a large amount of <span>CO<sub>2 </sub></span> emissions. As an environmentally-friendly and efficient separation method, membrane separation technology can reduce the energy consumption of <span>90%</span>. <span></span>
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						Our group is aiming at the separation of olefins in alkane, the separation of greenhouse gases, the desalination of seawater, the purification of air, etc. During the separation process, a series of studies on <strong>membrane materials and membrane reactors</strong> were carried out, including:
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						<b>1</b><b>）Inorganic dense ceramic oxygen separation membrane and membrane reactor thereof: </b> is a kind of mixed conductor with both oxygen ions and electronic conductivity, which can selectively separate oxygen from air or other oxygen-containing atmosphere at a certain temperature. . Oxygen is delivered in the form of oxygen ions during the separation process, so the selectivity to oxygen is 100%. The mixed conductor oxygen permeable membrane can be used not only for the separation preparation of oxygen-enriched air and high-purity oxygen, but also as a membrane reactor for the oxygen-related reaction, coupling the oxygen separation process with the reaction process. According to the direction of oxygen permeation and the role of the oxygen permeable membrane in the reaction, it can be divided into an oxygen input type and an oxygen output type mixed conductor oxygen permeable membrane reactor. The oxygen input membrane reactor can provide continuous, concentration-controlled distributed oxygen for some oxidation reactions in the selective oxidation of hydrocarbons (the partial oxidation of methane to syngas, the oxidative coupling of methane to ethylene, and the oxidative desorption of ethane). Hydrogen to ethylene, etc.), effectively avoiding the transitional oxidation of the product, thereby increasing the selectivity and yield of the product. The oxygen output type membrane reactor can remove the oxygen generated in the reaction in time, and break through the limitation of the thermodynamic equilibrium of the reaction, thereby increasing the conversion rate of the reactants, such as water decomposition, N<sub>2</sub>O decomposition, An oxide decomposition reaction such as decomposition of CO<sub>2</sub>.
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						<b>2</b><b>）Inorganic dense ceramic hydrogen separation membrane and membrane reactor thereof: </b> is a kind of mixed conductor with proton and electron conductivity, which can selectively separate hydrogen from a hydrogen-containing atmosphere at a certain temperature. Since the separation process is in the form of protons, its selectivity to hydrogen is 100%. The mixed-conductor hydrogen permeable membrane can also be used as a membrane reactor to couple the hydrogen separation process with some hydrogen-related reactions, thereby efficiently purifying the target product. According to the direction of penetration of hydrogen and the role of the hydrogen permeable membrane in the reaction, it can be divided into a hydrogen input type and a hydrogen output type mixed conductor hydrogen permeable membrane reactor. The hydrogen input membrane reactor can provide continuous, concentration-controlled distributed hydrogen for some hydrogenation or reduction reactions, thereby improving product selectivity and yield, such as hydrogenation of benzene to cyclohexane, N<sub>2 </sub>O reduction and decomposition, CO<sub>2</sub> reduction and decomposition reactions. The hydrogen output type membrane reactor can remove the hydrogen generated in the reaction in time, and break through the limitation of the thermodynamic equilibrium of the reaction, thereby increasing the conversion rate of the reactants, such as anaerobic aromatization of methane and anaerobic dehydrogenation of ethane. Ethylene and other reactions.
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						<b>3</b><b>）Porous film: The porous film is a type of separation membrane having a porous structure which is sieved by using different physical and chemical properties (molecular size, adsorption and desorption properties, etc.) between substances. In the field of porous membrane research, our group has developed a series of high-efficiency MOF membranes and two-dimensional material membranes (C<sub>3</sub>N<sub>4</sub>) for water separation and gas separation. MXene, etc.).
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						<b>4</b><b>）Battery separator:</b> The performance of the battery separator determines the interface structure, internal resistance, etc. of the battery, which directly affects the capacity, cycle performance, and rate performance of the battery, and is crucial for improving the safety of power battery production and application. effect. In view of the problem that the existing battery separator is easy to pierce, the high temperature is not resistant to high temperature, the conductivity is low, and the wettability is poor, the research group has developed a series of porous inorganic battery separators, such as SiO<sub>2</sub> diaphragm. , Al<sub>2</sub>O<sub>3</sub> separator, AAO separator, and assembled porous Al<sub>2</sub>O<sub>3< with good cyclic stability /sub>Separate self-supporting battery.
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		<p>Address: Room 421, Building 15, South China University of Technology, 381 Wushan Road, Tianhe District, Guangzhou</p>
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